At the end, when talking about number notations: > Mathematicians worry about that sort of thing. Engineers don't. Sometimes aeroplanes crash. Mostly they don'

At the end, when talking about number notations: > Mathematicians worry about that sort of thing. Engineers don't. Sometimes aeroplanes crash. Mostly they don't. I would argue this statement which (to me) wrongly blames the intrinsic lack of exactness in applied science, otherwise a good read.